| Surdulica to Oberkirch | 789.42 mi (1,270.45 km) |
| Surdulica to Obernburg am Main | 792.32 mi (1,275.12 km) |
| Surdulica to Obernkirchen | 896.57 mi (1,442.89 km) |
| Surdulica to Oberschleissheim | 640.22 mi (1,030.33 km) |
| Surdulica to Oberstdorf | 664.43 mi (1,069.29 km) |
| Surdulica to Obertraubling | 646.72 mi (1,040.79 km) |
| Surdulica to Obertshausen | 812.40 mi (1,307.44 km) |
| Surdulica to Oberursel | 827.09 mi (1,331.07 km) |
| Surdulica to Ochsenfurt | 750.81 mi (1,208.32 km) |
| Surdulica to Ochsenhausen | 698.51 mi (1,124.14 km) |
| Surdulica to Ochtrup | 956.47 mi (1,539.28 km) |
| Surdulica to Odenthal | 912.11 mi (1,467.90 km) |
| Surdulica to Oelde | 908.47 mi (1,462.04 km) |
| Surdulica to Oelsnitz | 713.17 mi (1,147.74 km) |
| Surdulica to Oer-Erkenschwick | 931.19 mi (1,498.60 km) |
